Phlox plant named ‘Ditosdre’

ABSTRACT

A new and distinct cultivar of  Phlox  plant named ‘Ditosdre’, characterized by its upright and mounding plant habit; freely branching and flowering habit; long flowering period; light purple-colored flowers; and good garden performance.

Botanical designation: Phlox paniculata.

Cultivar denomination: ‘Ditosdre’.

BACKGROUND OF THE INVENTION

The present invention relates to a new and distinct cultivar of Phlox, botanically known as Phlox paniculata and hereinafter referred to by the name ‘Ditosdre’.

The new Phlox plant is a product of a planned breeding program conducted by the Inventor in Noordwijkerhout, The Netherlands. The objective of the breeding program is to create new compact Phlox cultivars with attractive leaf and flower coloration.

The new Phlox plant originated from an open-pollination in Noordwijkerhout, The Netherlands in July, 2004, of Phlox paniculata ‘Uspech’, not patented, as the female, or seed parent with an unknown selection of Phlox paniculata, as the male, or pollen, parent. The new Phlox was discovered and selected by the Inventor as a single flowering plant from within the progeny of the stated open-pollination in a controlled outdoor nursery environment in Noordwijkerhout, The Netherlands in July, 2005.

Asexual reproduction of the new Phlox plant by cuttings in a controlled greenhouse environment in Noordwijkerhout, The Netherlands since January, 2006, has shown that the unique features of this new Phlox plant are stable and reproduced true to type in successive generations.

SUMMARY OF THE INVENTION

Plants of the new Phlox have not been observed under all possible environmental conditions. The phenotype may vary somewhat with variations in environment and cultural practices such as temperature and light intensity without, however, any variance in genotype.

The following traits have been repeatedly observed and are determined to be the unique characteristics of ‘Ditosdre’. These characteristics in combination distinguish ‘Ditosdre’ as a new and distinct cultivar of Phlox:

-   -   1. Upright and mounding plant habit.     -   2. Freely branching and flowering habit.     -   3. Long flowering period.     -   4. Light purple-colored flowers.     -   5. Good garden performance.

Plants of the new Phlox differ from plants of the female parent, ‘Uspech’, in the following characteristics:

-   -   1. Plants of the new Phlox are more upright and sturdier than         plants of ‘Uspech’.     -   2. Plants of the new Phlox are more freely branching than plants         of ‘Uspech’.     -   3. Inflorescences of plants of the new Phlox are more uniform         and fuller than inflorescences of plants of ‘Uspech’.

Plants of the new Phlox can also be compared to plants of Phlox paniculata ‘Junior Dream’, disclosed in U.S. Plant Pat. No. 16,059. In side-by-side comparisons conducted in Noordwijkerhout, The Netherlands, plants of the new Phlox and ‘Junior Dream’ differed in the following characteristics:

-   -   1. Plants of the new Phlox were stronger and sturdier than         plants of ‘Junior Dream’.     -   2. Plants of the new Phlox were more freely branching than         plants of ‘Junior Dream’.     -   3. Inflorescences of plants of the new Phlox were more uniform         and fuller than inflorescences of plants of ‘Junior Dream’.     -   4. Flowers of plants of the new Phlox were darker in color than         plants of ‘Junior Dream’.

BRIEF DESCRIPTION OF THE PHOTOGRAPHS

The accompanying colored photographs illustrate the overall appearance of the new Phlox, showing the colors as true as it is reasonably possible to obtain in colored reproductions of this type. Colors in the photographs may differ slightly from the color values cited in the detailed botanical description which accurately describe the colors of the new Phlox.

The photograph at the bottom of the sheet comprises a side perspective view of a typical flowering plant of ‘Ditosdre’ grown in a container.

The photograph at the top of the sheet is a close-up view of typical flowers and flower buds of ‘Ditosdre’.

DETAILED BOTANICAL DESCRIPTION

The aforementioned photographs and following observations, measurements and values describe plants grown in Lancaster, Pa., under commercial practice during the summer in one-gallon containers in a polyethylene-covered greenhouse with day temperatures ranging from 13° C. to 32° C. and night temperatures ranging from 13° C. to 30° C. Plants were pinched one time and had been growing for 17 weeks when the photographs and description were taken. In the following description, color references are made to The Royal Horticultural Society Colour Chart, 2001 Edition, except where general terms of ordinary dictionary significance are used.

-   Botanical classification: Phlox paniculata ‘Ditosdre’. -   Parentage:     -   -   Female, or seed, parent.—Phlox paniculata ‘Uspech’, not             patented.         -   Male, or pollen, parent.—Unknown selection of Phlox             paniculata, not patented. -   Propagation:     -   -   Type.—By cuttings.         -   Time to initiate roots.—About three weeks at 20° C.         -   Time to produce a rooted young plant.—About 25 days at 20°             C.         -   Root description.—Fibrous; grayed tan in color.         -   Rooting habit.—Freely branching; moderately dense. -   Plant description:     -   -   Plant form/habit.—Upright and mounding plant habit; vigorous             growth habit. Freely branching habit with about seven             lateral branches per plant; pinching enhances branching.             Uniform and full inflorescences.         -   Plant height.—About 29 cm.         -   Plant width (spread).—About 30 cm.         -   Lateral branches.—Length: About 27 cm. Diameter: About 4 mm.             Internode length: About 1.5 cm. Strength: Strong. Texture:             Smooth, glabrous. Color: Close to 146B. -   Foliage description:     -   -   Arrangement.—Opposite, simple; sessile, clasping.         -   Length.—About 10.5 cm.         -   Width.—About 2.5 cm.         -   Shape.—Narrowly elliptic.         -   Apex.—Acute.         -   Base.—Attenuate.         -   Margin.—Entire.         -   Texture, upper and lower surfaces.—Smooth, glabrous.         -   Venation pattern.—Pinnate, reticulate.         -   Color.—Developing leaves, upper surface: Close to 144A.             Developing leaves, lower surface: Close to 144B. Fully             expanded leaves, upper surface: Close to 137A; venation,             close to 144A. Fully expanded leaves, lower surface: Close             to 137B; venation, close to 145C. -   Flower description:     -   -   Flower type/habit.—Single rotate flowers arranged in             terminal compound cymes; flowers face mostly upright or             outwardly. Cymes rounded and hemispherical in shape. Freely             flowering habit with about 170 flowers developing per             inflorescence.         -   Fragrance.—Slightly fragrant; pleasant, vanilla-like.         -   Natural flowering season.—Continuously flowering during July             in Pennsylvania.         -   Postproduction longevity.—Flowers last about four to five             days on the plant; flowers not persistent.         -   Flower buds.—Height: About 2 cm. Diameter: About 6 mm.             Shape: Clavate. Color: Close to N157B.         -   Inflorescence height.—About 8.5 cm.         -   Inflorescence diameter.—About 9.25 cm.         -   Flower diameter.—About 3.1 cm.         -   Flower depth.—About 2.7 cm.         -   Throat diameter.—About 4 mm.         -   Tube length.—About 1.8 cm.         -   Tube diameter, base.—About 2 mm.         -   Petals.—Quantity per flower: Typically five in a single             whorl; petals fused at the base into a narrow tube. Length             from throat: About 1.5 cm. Lobe width: About 1.4 cm. Lobe             shape: Roughly spatulate. Apex: Rounded. Margin: Entire.             Texture, upper and lower surfaces and throat: Smooth,             glabrous. Texture, tube: Sparsely pubescent. Color:             Developing petals, upper surface: Close to 77C. Developing             petals, lower surface: Close to 76D. Fully expanded petals,             upper surface: Close to N74D; towards the base, close to             N74B; venation, close to N74D. With development, color             becoming closer to 85C; center, close to N74D; towards the             base, close to N74B; eventually, color becoming closer to             85D. Fully expanded petals, lower surface: Close to 76D;             venation, close to 76D. Throat: Close to 157D; venation,             close to 157D. Tube: Close to 157C; venation, close to 157C.         -   Sepals.—Quantity per flower: Typically five in a single             whorl, fused towards the base. Length: About 7 mm. Width:             About 1 mm. Shape: Lanceolate. Apex: Acuminate. Margin:             Entire. Texture, upper and lower surfaces: Smooth, glabrous.             Color, developing and fully expanded sepals, upper surface:             Close to 144A. Color, developing and fully expanded sepals,             lower surface: Close to 144A to 144B.         -   Peduncles.—Length: About 2.8 cm. Diameter: About 2.5 mm.             Strength: Strong. Texture: Pubescent. Color: Close to 146C.         -   Pedicels.—Length: About 4 mm. Diameter: About 1 mm.             Strength: Strong. Texture: Pubescent. Color: Close to 146C.         -   Reproductive organs.—Stamens: Quantity per flower: Typically             five. Anther shape: Narrowly oblong. Anther length: About             2 mm. Anther color: Close to 145C. Pollen amount: Scarce.             Pollen color: Close to 157C. Pistils: Quantity per flower:             One. Pistil length: About 2.1 cm. Stigma shape:             Three-parted. Stigma color: Close to 145C. Style length:             About 1.8 cm. Style color: Close to 145D. Ovary color: Close             to 137B.         -   Seed/fruit.—Seed and fruit development have not been             observed. -   Disease/pest resistance: Plants of the Phlox have not been observed     to be resistant to pathogens and pests common to Phlox. -   Garden performance: Plants of the new Phlox have been observed to     have good garden performance and tolerate rain, wind and     temperatures ranging from about 0° C. to about 35° C. 

1. A new and distinct Phlox plant named ‘Ditosdre’ as illustrated and described. 